International Journal of Pure and Applied Zoology

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- International Journal of Pure and Applied Zoology (2014) Volume 2, Issue 3

Bioefficacy of Cleome Viscosa L. and Sinapis Alba L. Seed Extracts against Helicoverpa Armigera (Hubner) (Lepidoptera: Noctuidae)

Solvent extracts of Cleome viscosa L. (Cleomaceae) and Sinapis alba L. (Brassicaceae) seeds were incorporated in semi-synthetic diet of Helicoverpa armigera (Hubner) at 0.5, 1.0, 1.5 and 2.0% concentrations to evaluate their antifeedant, larvicidal, pupicidal and adult malformation activities against H. armigera. Methanol extract of S. alba recorded very high antifeedant activity (71.42%) and pupicidal activity (54%) at 2% concentration. At 2% concentration the hexane extracts of S. alba (33.93%) and C. viscosa (32.86%) produced more deformities at adult stage of the insect. The results clearly indicated that the methanol extract of S. alba seeds have potential antifeedant activity against H. armigera and can be used to prevent crop damage by H. armigera in the field

Author(s): G. Sivaraman, M. Gabriel Paulraj, S. Ignacimuthu1, N. A. Al-Dhabi

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